Cat Financial Financing Activities (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Finance receivables
Wholesale inventory receivables	$ 25,150	$ 23,029
Weighted average term	51 months
Weighted average remaining term	28 months
Period after which unpaid installments are considered as past due	30 days
Extended Maturity
Finance receivables
Financing receivable, borrowers not considered to be experiencing financial difficulty, maximum period	6 months
Payment Deferral
Finance receivables
Financing receivable, borrowers not considered to be experiencing financial difficulty, maximum period	4 months
Dealer
Finance receivables
Wholesale inventory receivables	$ 1,515	1,512
Financing receivable, modified in period, amount	0	0
Dealer \| Latin America
Finance receivables
Non-accrual	0
Customer
Finance receivables
Wholesale inventory receivables	23,635	21,517
Financing receivable, modified in period, amount	$ 38	$ 33
Financing receivable, modified, percentage	0.16%	0.15%
Wholesale receivables
Finance receivables
Wholesale inventory receivables	$ 2,169	$ 1,750

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